Coke-oven and door therefor.



1j. QW. c. SGHN'IBWIND. L GOKOVEN AND DOOR THEBEPOB. Alrmomon FILED00194, 1907.

5 muted N0v.29,1910.

" .Be it known that. I, FREDERIC NVQ-C'.

,Umano sfratras PATENT onirica-.f

. rnnnnnro w. o.. vscnamswim);ornnw Yoan, N. Y.-

n conn-ovnNjANn noon annnnron.

To all mog/"concern: A I

' SCHNIEWIND, a citizen of the United States sary it can be' readily ofAmerica, residing in the city, county, and

State of New York, haveinvented a certain new and useful ImprovementinCoke-Ovens and Doors T herefor, of which the following is a true andexact description, reference being' had to the accompanying drawings',

-.which form afpart thereof.

` The present invention ;`relates to the-construction and arrangementAof the vcokin retort-s or chambers yof' cokmg' ovens, -an

particularlyto the construction and arrangei mentof the removable wallportions or l doors throughwhichthe rctorts, are charged and discharged.

One object of the-present inyentionbis'ito,

provide a simple and effective oven' door construction so arranged' thatwhen necesremoved-and can be readily put vback an sealed in place, and

Awhich when sealed in place s erves.to effec- -tuall'y close the doorwayagalnstiair or .gas

leakage and toinsulate theeoking ,chamber provisionof a suitablefollower which is preferably formed by or connected .to' one of theldoors ofthe coking retort and which' is arranged to bear against; thecoking body or charge during the coking operation and thereby improveeither the coke formed or the vol ati-le products recovered, orpreferably to improve both the coke and the-'volatile components of the-coking operation. The

' follower may improve the coke by compress-.

ing the charge during thecolring operation and thereby producing adenser and .more uniform grade ofcoke. Byuserving as a displacing agentthe follower may prevent the formation of spaces in the-.hot portionsofv the retort in which the 'volatile products would otherwisecollectfand stagnate more or less. The cracking of the hydrocar-1 bonsresulting from their long exposure to high temperatures which is thusavoided re' l sults in a material increase in the value of' thevolatile,products-recovered in the coking operation.

The -yarious features Aof novelty .whichV characterize the invention arepointed out with' articular-ity in the claims'annexed to and orniing'apart of this specification. For a betterun erstanding of the invention,however, reference may be had to the specification 'of Letters rate-nt..

Application ld October 24:,- 1907. Serial No. 398,904.

'oven structure, and A atenteauov.- 29, 1910.

accompanying drawings l. and descriptive f matter in whichseveral formsof the ap paratus embodying the invention 4are illus-4 tratedanddescribed. s

Of the `drawin Figure I is a sectional 4elevation of 'a co e oventhrough a coking door construction, and Fig. 4 is a section takensimilarly to Fig. 2 showing the modified door' of Fig.4 3 in place.

.'In the drawings, and referring first to the constructions shown in Figs. l and 2, A

representsthe fire-brick walls of thevcoke shell. -The masonry may besupported in any suitable manner, though preferably, by the metalloorbeamsAz'and columns A3. In1the walls A are formed one or more cokingretorts or. chambers B,each of which v in the form shown is long anddeep but narrow. The retortsmay be heated in any y,suitable manner,as'by heating lues B at the sides of the retorts, which maybe ,con-vnected at their upper and lower ends with -burner ehambersj2 and withpassages B3 running to regenerative chambers, as described and claimedin' application Serial No. 398,902 filed of even date herewith.

The retorts 'B in thepstructure shown are Acharged with coal throughtheir upper ends,

and the coke formed is discharged through theA lower ends offthe'retorts On this ac count each retort is provided with a removable topwall or door. and a removable bottom-wall or door. The top wall or doorcomprises a body C of heat resisting and insulating material, such ashollow fire-brick,

a masonry inclosing tile, or the like, and a metal cap piece or frame C.In the form' shown, longitudinal vgrooves C2 areformed in the tile inwhich enter the flanged members C3 of the member C', .thus effectual-1ysecuring the parts 'together. The member'C is also rovided with a'depending ange portion or trough'formed between the upwardly extendingribst E'. .formed on the metal -rim member E which surrounds theupperend of the retort B. The member C* and the member E and its ribs E'thus unite to form a seal which may be packed with any suitablematerial.

4 which enters-telescopic fasluon'the space, groove,

The .top doo;` is provided on its upper the c oals vwith thirty `of thepart D is provided with l of the yokes F* sides with perforated ears 05,which may be enga ed by suitable operating devices when dcbor is to belifted into or out of place. The bottom door comprises an inner part Dwhich extends to the upper edges of chambers B2 and may be substantiallylike the part C, and an under metal supporting art- D on whichthe part Drests 'and may lie secured by any suitable means as lugs D enteringrecesses in the tile or brick part D.

body of the member D and the bottom plate D* form the trough into whichthe flan e. F of the rim F projects to form the seal. ach bottom doormay be held in lace by any 4suitable means,- as for instance y theactuated bolts or rack bars F2 sliding' .in guides Fs to engage anddisengage the ends the door.

The .mechanism 'for raising and lowering the walls or doors C and D incharging and discharging the retort forms no partv of the presentinvention and for that reason ls'not illustratedv .or described herein.

In operation, when the oven is around i z'` the colte in itis ready tobe discharged, the ower door is removed and the coke s o formed isdischarged in a pro er manner; the door is then replaced and t e sealcompleted by inserting the aching material in the space between 'theribs D. The upper door 1s then 'removed and the charge of coal. to becoked is inserted and compacted up to the desired level. -After this is.done the cover or door is replaced and its seal iscom;l pleted. by theinsertion of the ackingmate-l rial between Vthe vribs E., 'lBhe heightto which the retort is filled will'depend on'the character of the-coalcom ing .the charge. Some coals contractl` in co while others' expand,the che vein; bulk' depe the amount. of latile matter in Goals with lessthan twenty?. volatile matter nd" on ation. reent. of expand materially,while 15o-thirty veper cent. of volatile matter shrink veryconsiderably. On this account the retort should be filled with expandingcoal to such a height that the expansion will not break the seal bycarrying the flan e C* bovethe tops of the ribs E', and witi shrinkingcoal to such a height that the flange `C will not en age the rim member,E to thereby hold the weight of the door oi the char e.

While by making the ribs C* and E" of suitable height a considerablevariation in hulk of the charge cake can be taken care of, with coals'which 'change greatly in'bulk such as those containing high amountsof".

.volatilejmatter 'where the-change in bulli.

is most' marked, thetop door.construction showri 1n Figs. 3 -and 4; maypreferably bjef' 'employed In this constructlon a suppleth-rougl1,thecap piece The bottom door, however, a flange D3 which with the` pinion"'coal dust secured tothe under side of escape tosuitable reservoirs orsome volatile above the hot part mental cap Cs is secured to the tilebody C,

and carries rods CGV which pass freely C', und have eyes C' at theirupper ends for engagement by the operating devices. With thisarrangement the ca piece C remains stationary Whlle the bo y Grises orfalls with the top of the charge. '-With this constructionas with thebottom flanges need overlap only enough to an eil'ective seal;

flanges do .not move ment, as is the case with Vthe bottom door and doorin any case, the telescoping.

Where the overlappingl after the initial adJustwith the top door ofFigsf and 4, the-seal. I

packing may be formed'. of any suitable liquid, pulverized material,such as sand or terial. f course, flanges or ribshave ing the cokln rialmust be where the overlapping g operation the packing mate"- will notbreak the seal. In, any event the operation of packing theseals is asimple and inexpensiveone. The sealing troughs can be readily cleanedafter each seal break? ing, and the masonry walls are not injured bytheadherence to as has frequently been .the case with oven doorconstructions heretofore used.

In the oven lshown the volatile'products through vthe inclined 'vents Bwalls ofthe retort 'the lower vents being protected against'c ogging .bytl'ief coal by means ofthe forebays B6; .As the cover body .C rests onthe top of thecharge vand pracin the e'nd tically fills the upperend of'the retort there' 1s nospace in the'retort'- in which the volatile`products. can collect, consequently' as the are given olf from the coalthey pass at hig velocity along the -walls of the retort to the escapevents and are not'overheated.

' .As shown the movable follower portion or body C o the upper wallv ordoor 1s made of substantial depth `or thickness .measured in a verticaldirection, 'and in practice -I lime or clay, or other `luting marelativemovement dursochosen thattlie movement them of luting material A lreceptacles make the .vertical dimension .of the follower C great enoughso'that when the-retort is roperly charged, the upper ortion ofthe 4 odyC will be maintained t roughout the entire coking operation at a levelnot below that of the top passages B3, so that while iroducts may`accumulate such accumulation is well of the retort .walls whichterminates 'practically with the level ofthe passages 7B". The' weightofthe top door above the body 'machanically- Well-constructed toserve asthe movable walls of a horizontally elongatedi or the follower portionof it should ofcourse against the surface of the cokilw body durretortof largecapacity which is charged through its upper ends along itsentire length and from which the coke formed may be moved out in anunbroken cake.

Nospecific claim is made herein to the special features of constructionshown in Figs. 3 and 4, as those features are claimed specifically inIny eopendingapplieation Serial No, 437,094, tiled June 6th 1908, as adivision of this application. l i

Having noW described my invention, what I claim as new and desire tosecure by Letters `Patent is:

1. In combination, a coke ovenhaving a eoking chamber providedWith'vents for the escape of the volatile constituents of the chargecoked, and means acting automatically as the charge changes in volume toprevent the formation of a space or spaces m the high temperaturelportion of said chamber in which the volatile constituents can collectand remain stagnant.

2. In combination, a coke 'oven having a eoking chamber provided withvents for the escape of the volatile constituents of the charge coked,and meansfor preventing the formation of a relatively stagnant .body ofsuch volatile constituents in the high tenipeinturev portion of saidchamber, said means conxprising a movable follower held ing the cokingoperation, said follower being ofsuch horizontal and verticaldimensionsas to substantially fill the high telnperature portion of theup ier end of the coliing chambernot occupie by the charge being coke'd.

` 3. In combination, a coke oven structure having a eoking chamber' anda movable top Wall tor said chamber comprising an outer sealing portionand an inner portion of re fraetory material which substantially fillsthe upper end of said retort and bears on the charge and is free to riseor fall with the charge as tlie latter expandsor shrinks during thecoking operation.

In combination, a coke oven having a coking chamber' provided with ventsfor the escape of the volatile constituents of the charge coked, saidvents being formed at different levels in each end wall of the retort,and Imeans for preventing the forma-` tion' of a relatively stagnantbody of such volatile constituents in the high .tempera ture portion ofsaid chamber, said means` comprising a movable follower held against.A

the surface of the coking body during the eoking operation, said`follower being ot such horizontal and vertical dimensions as tosubstantiallyY till the high temperature portion of the upper'end ofthecoking chamber not occupled by the charge being cokcd.

FREDERIC W. C. SCHNIEWIND.'

Witnesses:

Ronrzar C. MnTcALrn, D. WV. KINCAID.

